234 



NORTH-CAROLINA GEOLOGICAL SURVEY. 



projects enormously inward ; enamel thin ; serratures small, 

 subequal ; inner face very convex ; outer nearly flat at base, 

 but traversed longitudinally by an inconsiderable prominence. 



FIG. 58. 



FIG. 60. 



Only one tooth of this description has been obtained from 

 the eocene at Wilmington. The form of the tooth is very 

 peculiar, and may be readily distinguished by the great thick- 

 ness of its root and projection inward. This projection is 

 on a level with the branches of the root. The twist also, at 

 the extremity, is also, a prominent feature in this tooth. It 

 is probable, this tooth indicates the existence of a genus, 

 which should be separated from the carcharodon, but the ex- 

 istence of a single tooth does not furnish all the characteris- 

 tics which probably belong to it. 



